REST API patterns that are easy to reason about

Why this matters

A good backend API is not just about making requests work. It is about making the system easy to maintain, debug, and evolve.

Practical patterns

• keep routes resource-oriented
• validate requests early
• return consistent error responses
• separate business logic from transport code
• think carefully about idempotency when needed

What I still learn

The best API is the one that makes the next engineering decision easier.